公开(公告)号：DE602007005290D1

公开(公告)日：2010-04-29

申请号：DE602007005290

申请日：2007-01-24

Applicant: XEROX CORP

Inventor： WANG SHEN-GE ,  BALA RAJA ,  MONGA VISHAL

IPC: H04N1/405 ,  H04N1/407 ,  H04N1/60

公开(公告)号：JP2010166563A

公开(公告)日：2010-07-29

申请号：JP2010003788

申请日：2010-01-12

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： MONGA VISHAL ,  WANG SHEN-GE

IPC: H04N1/40 ,  G06T5/00 ,  H04N1/405 ,  H04N1/52

CPC classification number: H04N1/4078 ,  H04N1/40006

Abstract: PROBLEM TO BE SOLVED: To provide a system and method for halftone independent temporal color drift correction in a xerographic printer having high addressability.
SOLUTION: The method for halftone independent temporal color drift correction includes steps of: printing a target set of basic patches including a patch having at least two resolutions and comprising a fundamental binary pattern independent of a halftone screen; measuring printer response from the target set; modeling a halftone independent characterization of the printer with a mathematical transformation using the measured response; modeling a first halftone dependent characterization of the printer with the mathematical transformation to generate a first predicted result using a halftone screen; comparing a measured response of the printer using the halftone screen with the predicted result to define a correction factor corresponding to the halftone screen; and modeling a second halftone dependent characterization of the printer using a predicted response of the fundamental binary pattern and the correction factor.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种具有高可寻址性的静电印刷机中的与半色调无关的时间色彩漂移校正的系统和方法。 无色调时间色彩漂移校正的方法包括以下步骤：打印包括具有至少两个分辨率的贴片的基本贴片的目标组，并且包括独立于半色调屏幕的基本二进制图案; 从目标组测量打印机响应; 使用测量的响应用数学变换建模打印机的半色调独立表征; 使用数学变换建模打印机的第一个半色调依赖特征，以使用半色调屏幕生成第一个预测结果; 将使用半色调屏幕的打印机的测量响应与预测结果进行比较，以定义对应于半色调屏幕的校正因子; 以及使用基本二进制模式和校正因子的预测响应对打印机的第二半色调依赖特征进行建模。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2007208977A

公开(公告)日：2007-08-16

申请号：JP2007014052

申请日：2007-01-24

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： WANG SHEN-GE ,  BALA RAJA ,  MONGA VISHAL

IPC: H04N1/405 ,  B41J2/525 ,  G06T3/40 ,  H04N1/407 ,  H04N1/60

CPC classification number: H04N1/4078 ,  H04N1/40006

Abstract: PROBLEM TO BE SOLVED: To compensate a color drift of halftone by reducing a prediction error in a color two-by-two printer model applied to a xerographic printer.
SOLUTION: A method for compensating a color drift in a printer includes for each color channel, determining a first true tone response curve (TRC) for a color channel when the printer is in a first state; determining a first estimated tone response curve for the color channel when the printer is in the first state; determining a second estimated tone response curve for the color channel when the printer is in a second, color-drifted state relative to the first state; and mathematically predicting a second true tone response curve for the color channel using the first true tone response curve, the first estimated tone response curve, and the second estimated tone response curve.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：通过减少应用于静电印刷机的彩色二乘打印机模型中的预测误差来补偿半色调的颜色漂移。 解决方案：一种用于补偿打印机中颜色漂移的方法，包括：对于每个颜色通道，当打印机处于第一状态时，确定用于颜色通道的第一真实色调响应曲线（TRC）; 当所述打印机处于所述第一状态时，确定所述颜色通道的第一估计色调响应曲线; 当所述打印机处于相对于所述第一状态的第二颜色漂移状态时，确定所述颜色通道的第二估计色调响应曲线; 以及使用所述第一真实音调响应曲线，所述第一估计音响应曲线和所述第二估计音响响应曲线，数学地预测所述颜色通道的第二真正音调响应曲线。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2011045061A

公开(公告)日：2011-03-03

申请号：JP2010183200

申请日：2010-08-18

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： FILLION CLAUDE S ,  MONGA VISHAL ,  FAN ZHIGANG ,  RAMESHU NAGARAJAN

IPC: H04N1/387 ,  G06F3/048 ,  G06F17/21 ,  G06T3/00

CPC classification number: G06T11/60 ,  G06K9/00456 ,  G06T2207/30176

Abstract: PROBLEM TO BE SOLVED: To provide an object-based adaptive document resizing method that utilizes segmentation information and then resizes a document component using an optimal technique for each component.
SOLUTION: Objects included in a document are identified, the identified objects are classified, and a selected object is extracted from the document. A resizing technique is selected for the extracted object based on the classification, a resized object is created by applying the resizing technique selected for the selected object, and a new document is created with resized objects.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种基于对象的自适应文档调整大小方法，其利用分段信息，然后使用针对每个组件的最佳技术来调整文档组件的大小。

解决方案：识别包含在文档中的对象，识别的对象被分类，并从文档中提取所选对象。 基于分类，为提取的对象选择调整大小的技术，通过应用为所选对象选择的调整大小技术来创建调整大小的对象，并且使用调整大小的对象创建新文档。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010187376A

公开(公告)日：2010-08-26

申请号：JP2010026872

申请日：2010-02-09

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： FILLION CLAUDE S ,  MONGA VISHAL ,  FAN ZHIGANG ,  RAMESHU NAGARAJAN

IPC: H04N1/387 ,  G06T3/00

CPC classification number: G06T3/0012

Abstract: PROBLEM TO BE SOLVED: To delete a portion, that is not important, in an image without exerting any adverse influence upon visual balance of the image.
SOLUTION: An image of a document to be resized is received (102) and seams are carved through the image according to seam carving techniques using an importance map of the image (104), energy of the carved seams is computed, and background seams composed of background pixels are identified based on the computed energy (106). Adjacent background seams are collected to form groups of background seams (108). A target number of seams to be removed for each background seam group is then determined (110) based on the widths of the background seam groups. Until the image becomes a target dimension, from each of the background seam groups, the target number of seams are deleted therefrom (112) and the image of the document resized by the deletion is supplied to an image output device (114).
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：删除图像中不重要的部分，而不会对图像的视觉平衡产生不利影响。 解决方案：使用图像的重要性图（104），根据接缝雕刻技术（102）接收要调整大小的文档的图像（102），并且通过图像雕刻接缝，计算雕刻接缝的能量，以及 基于计算出的能量来识别由背景像素组成的背景接缝（106）。 收集相邻的背景接缝以形成背景接缝组（108）。 然后基于背景接缝组的宽度来确定要为每个背景接缝组去除的目标接缝数目（110）。 直到图像成为目标尺寸为止，从每个背景接缝组中，从其中删除接缝的目标数量（112），并且通过删除调整大小的文档的图像被提供给图像输出设备（114）。 版权所有（C）2010，JPO＆INPIT